Wall anchor



FIG. 1 is a perspective view of a wall anchor showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof; and,

FIG. 5 is a top view thereof.

Right side and bottom views have been omitted since they are identical to FIGS. 4 and 5, respectively.

The broken lines in the drawings illustrate portions of the wall anchor and form no part of the claimed design. 

CLAIM The ornamental design for a wall anchor, as shown and described. 